/* ===== 全局基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --navy-900: #0A1F3D;
    --navy-800: #0F2A52;
    --navy-700: #163A6E;
    --navy-600: #1E4F8A;
    --blue-500: #2D7BC4;
    --blue-400: #4A9BD8;
    --gold-600: #B8902E;
    --gold-500: #C9A14A;
    --gold-400: #D8B968;
    --gold-300: #E6CD8E;
    --ink: #1A2333;
    --text: #2B3445;
    --text-sub: #5B6678;
    --text-light: #94A0B3;
    --bg-soft: #F4F7FB;
    --bg-card: #FFFFFF;
    --border: #E4EAF2;
    --max-w: 1240px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    line-height: 1.65;
    background-color: #FFFFFF;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease;
}

a:hover {
    color: var(--gold-500);
}

ul, ol { list-style: none; }

img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 通用按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 34px;
    border-radius: 2px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--navy-900);
    box-shadow: 0 6px 20px rgba(201, 161, 74, 0.35);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(201, 161, 74, 0.5);
    color: var(--navy-900);
}

.btn-outline {
    background: transparent;
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--gold-400);
    color: var(--gold-300);
}

.btn-dark {
    background: var(--navy-800);
    color: #FFFFFF;
}

.btn-dark:hover {
    background: var(--navy-700);
    color: var(--gold-300);
}

/* ===== 顶部信息条 ===== */
.top-bar {
    background: var(--navy-900);
    color: #B8C5D6;
    font-size: 13px;
    display:none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.top-bar-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 8px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.top-bar a { color: #B8C5D6; }
.top-bar a:hover { color: var(--gold-300); }

.top-bar .top-info { display: flex; gap: 26px; align-items: center; }
.top-bar .top-info span { display: inline-flex; align-items: center; gap: 6px; }
.top-bar .top-right { display: flex; gap: 18px; align-items: center; }

/* ===== 主导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 42, 82, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(201, 161, 74, 0.25);
}

.nav-wrapper {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand .brand-cn {
    font-size: 22px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 2px;
}

.brand .brand-cn .gold-dot {
    color: var(--gold-400);
    margin-right: 4px;
}

.brand .brand-en {
    font-size: 11px;
    color: var(--gold-300);
    letter-spacing: 2px;
    margin-top: 4px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-menu li a {
    display: inline-block;
    padding: 10px 20px;
    font-size: 15px;
    color: #CDD7E6;
    position: relative;
    letter-spacing: 1px;
}

.nav-menu li a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 4px;
    width: 0;
    height: 2px;
    background: var(--gold-400);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--gold-300);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 24px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: #FFFFFF;
    transition: 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 页面主体 ===== */
.page-body { min-height: 60vh; }

/* ===== Hero（首页大 Banner） ===== */
.hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    color: #FFFFFF;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(10, 31, 61, 0.92) 0%, rgba(15, 42, 82, 0.78) 45%, rgba(22, 58, 110, 0.55) 100%);
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--gold-300);
    font-size: 14px;
    letter-spacing: 4px;
    margin-bottom: 22px;
    text-transform: uppercase;
}

.hero-eyebrow::before,
.hero-eyebrow::after {
    content: "";
    width: 36px;
    height: 1px;
    background: var(--gold-400);
    opacity: 0.7;
}

.hero h1 {
    font-size: 54px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 22px;
    letter-spacing: 4px;
}

.hero h1 .accent {
    color: var(--gold-400);
}

.hero .hero-desc {
    font-size: 18px;
    line-height: 2;
    color: #D6DEEC;
    max-width: 680px;
    margin-bottom: 40px;
}

.hero .hero-btns {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

/* Hero 底部统计条 */
.hero-stats {
    position: relative;
    z-index: 2;
    background: linear-gradient(180deg, #0000004f 0%, rgba(10, 31, 61, 0.85) 100%);
}

.hero-stats-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 28px 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.hero-stat {
    text-align: center;
    color: #FFFFFF;
    border-right: 1px solid rgba(201, 161, 74, 0.25);
}

.hero-stat:last-child { border-right: none; }

.hero-stat .num {
    font-size: 36px;
    font-weight: 700;
    color: var(--gold-400);
    line-height: 1;
    margin-bottom: 8px;
    font-family: "Georgia", serif;
}

.hero-stat .label {
    font-size: 13px;
    color: #B8C5D6;
    letter-spacing: 2px;
}

/* ===== 通用页面 Banner ===== */
.page-banner {
    position: relative;
    min-height: 360px;
    display: flex;
    align-items: center;
    color: #FFFFFF;
    overflow: hidden;
}

.page-banner .banner-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.page-banner .banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10, 31, 61, 0.92) 0%, rgba(22, 58, 110, 0.7) 60%, rgba(15, 42, 82, 0.5) 100%);
    z-index: 1;
}

.page-banner .banner-inner {
    position: relative;
    z-index: 2;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.banner-eyebrow {
    color: var(--gold-400);
    font-size: 13px;
    letter-spacing: 4px;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.page-banner h1 {
    font-size: 42px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
}

.page-banner .crumb {
    font-size: 14px;
    color: #B8C5D6;
}

.page-banner .crumb a { color: var(--gold-300); }
.page-banner .crumb a:hover { color: #FFFFFF; }

/* ===== 通用区块 ===== */
.section { padding: 90px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark {
    background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 100%);
    color: #CDD7E6;
}

.section-head {
    text-align: center;
    margin-bottom: 56px;
}

.section-head .eyebrow {
    color: var(--gold-500);
    font-size: 13px;
    letter-spacing: 4px;
    margin-bottom: 14px;
    text-transform: uppercase;
    font-weight: 600;
}

.section-head h2 {
    font-size: 34px;
    color: var(--ink);
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-dark .section-head h2 { color: #FFFFFF; }

.section-head .divider {
    width: 60px;
    height: 3px;
    margin: 0 auto 18px;
    background: linear-gradient(90deg, var(--gold-400), var(--gold-600));
    border-radius: 2px;
}

.section-head p {
    color: var(--text-sub);
    font-size: 16px;
    max-width: 680px;
    margin: 0 auto;
}

.section-dark .section-head p { color: #9FAFCA; }

/* ===== 业务领域（首页） ===== */
.biz-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.biz-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 44px 28px 36px;
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
}

.biz-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-400), var(--gold-600));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.biz-card:hover {
    border-color: var(--gold-400);
    box-shadow: 0 14px 36px rgba(15, 42, 82, 0.12);
    transform: translateY(-6px);
}

.biz-card:hover::before { transform: scaleX(1); }

.biz-num {
    font-family: "Georgia", serif;
    font-size: 14px;
    color: var(--gold-500);
    letter-spacing: 2px;
    margin-bottom: 18px;
    font-weight: 700;
}

.biz-icon {
    width: 56px;
    height: 56px;
    border: 1px solid var(--gold-400);
    color: var(--gold-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.biz-card h3 {
    font-size: 20px;
    color: var(--ink);
    margin-bottom: 12px;
    font-weight: 600;
}

.biz-card p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.85;
}

/* ===== 关于简介块（首页） ===== */
.about-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-block .about-text .eyebrow {
    color: var(--gold-500);
    font-size: 13px;
    letter-spacing: 4px;
    margin-bottom: 14px;
    text-transform: uppercase;
    font-weight: 600;
}

.about-block .about-text h2 {
    font-size: 32px;
    color: var(--ink);
    margin-bottom: 24px;
    letter-spacing: 2px;
    font-weight: 700;
}

.about-block .about-text p {
    color: var(--text-sub);
    margin-bottom: 18px;
    line-height: 2;
    font-size: 15px;
}

.about-block .about-text .gold { color: var(--gold-600); font-weight: 600; }

.about-feature {
    margin-top: 28px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.about-feature li {
    padding-left: 26px;
    position: relative;
    color: var(--text);
    font-size: 14px;
}

.about-feature li::before {
    content: "◆";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--gold-500);
    font-size: 12px;
}

.about-visual {
    position: relative;
    height: 400px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(15, 42, 82, 0.25);
}

.about-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-visual::after {
    content: "";
    position: absolute;
    left: -20px;
    bottom: -20px;
    width: 120px;
    height: 120px;
    border: 3px solid var(--gold-400);
    z-index: 2;
}

/* ===== 数据看板 CTA ===== */
.cta-band {
    position: relative;
    padding: 70px 0;
    color: #FFFFFF;
    text-align: center;
    overflow: hidden;
}

.cta-band .cta-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.cta-band .cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 31, 61, 0.9), rgba(15, 42, 82, 0.85));
    z-index: 1;
}

.cta-band .container {
    position: relative;
    z-index: 2;
}

.cta-band h2 {
    font-size: 30px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.cta-band p {
    color: #CDD7E6;
    margin-bottom: 30px;
    font-size: 16px;
}

/* ===== 关于我们页 ===== */
.about-intro {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-intro .intro-text h2 {
    font-size: 28px;
    color: var(--ink);
    margin-bottom: 22px;
    letter-spacing: 2px;
}

.about-intro .intro-text p {
    color: var(--text-sub);
    margin-bottom: 16px;
    line-height: 2;
    font-size: 15px;
}

.about-intro .intro-text .gold { color: var(--gold-600); font-weight: 600; }

.about-intro .intro-visual {
    height: 380px;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 16px 40px rgba(15, 42, 82, 0.2);
}

.about-intro .intro-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 企业文化块 */
.culture-block {
    background: var(--bg-card);
    border-left: 4px solid var(--gold-500);
    padding: 40px 44px;
    box-shadow: 0 10px 30px rgba(15, 42, 82, 0.06);
}

.culture-block h3 {
    font-size: 22px;
    color: var(--ink);
    margin-bottom: 18px;
}

.culture-block p {
    color: var(--text-sub);
    line-height: 2;
    margin-bottom: 12px;
}

.culture-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.culture-tags span {
    padding: 6px 16px;
    background: var(--navy-900);
    color: var(--gold-300);
    font-size: 13px;
    letter-spacing: 1px;
    border-radius: 2px;
}

/* 价值观 */
.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 44px 32px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.value-card:hover {
    background: var(--navy-900);
    border-color: var(--navy-900);
    transform: translateY(-6px);
}

.value-card:hover h3,
.value-card:hover .v-num { color: var(--gold-400); }

.value-card:hover p { color: #B8C5D6; }

.value-card .v-num {
    font-family: "Georgia", serif;
    font-size: 42px;
    color: var(--gold-400);
    opacity: 0.4;
    line-height: 1;
    margin-bottom: 16px;
    transition: color 0.3s ease;
}

.value-card h3 {
    font-size: 20px;
    color: var(--ink);
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.value-card p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.9;
    transition: color 0.3s ease;
}

/* 发展历程 */
.timeline {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 24px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--gold-400), var(--navy-700));
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: 36px;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: 17px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gold-500);
    border: 3px solid #FFFFFF;
    box-shadow: 0 0 0 2px var(--gold-400);
}

.timeline-item .year {
    font-family: "Georgia", serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--gold-600);
    margin-bottom: 6px;
}

.timeline-item .event {
    color: var(--text-sub);
    line-height: 1.9;
}

/* ===== 产品页 ===== */
.product-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    box-shadow: 0 16px 40px rgba(15, 42, 82, 0.14);
    transform: translateY(-4px);
    border-color: var(--gold-400);
}

.product-cover {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-cover img { transform: scale(1.06); }

.product-cover .pc-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(10, 31, 61, 0.85);
    color: var(--gold-300);
    padding: 5px 14px;
    font-size: 12px;
    letter-spacing: 2px;
}

.product-body {
    padding: 30px 32px 34px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-body h3 {
    font-size: 22px;
    color: var(--ink);
    margin-bottom: 12px;
    font-weight: 600;
}

.product-body p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.9;
    margin-bottom: 18px;
}

.feature-list {
    margin-top: auto;
}

.feature-list li {
    color: var(--text);
    font-size: 14px;
    padding-left: 22px;
    position: relative;
    margin-bottom: 8px;
}

.feature-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--gold-500);
}

/* 服务流程 */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.process-card {
    text-align: center;
    padding: 36px 22px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(201, 161, 74, 0.2);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.process-card:hover {
    background: rgba(201, 161, 74, 0.1);
    border-color: var(--gold-400);
}

.process-card .p-num {
    font-family: "Georgia", serif;
    font-size: 40px;
    color: var(--gold-400);
    line-height: 1;
    margin-bottom: 16px;
}

.process-card h3 {
    color: #FFFFFF;
    font-size: 18px;
    margin-bottom: 10px;
}

.process-card p {
    color: #9FAFCA;
    font-size: 13px;
    line-height: 1.8;
}

/* ===== 客户案例页 ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-card:hover {
    box-shadow: 0 16px 40px rgba(15, 42, 82, 0.14);
    transform: translateY(-5px);
}

.case-cover {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-cover img { transform: scale(1.06); }

.case-cover .cc-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 31, 61, 0.6) 100%);
}

.case-body {
    padding: 24px 26px 28px;
}

.case-body .case-tag {
    display: inline-block;
    color: var(--gold-600);
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 10px;
    font-weight: 600;
}

.case-body h3 {
    font-size: 18px;
    color: var(--ink);
    margin-bottom: 10px;
}

.case-body p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.8;
}

/* 客户墙 */
.client-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.client-item {
    height: 130px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.client-item img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    z-index: 0;
}

.client-item::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 31, 61, 0.15) 0%, rgba(10, 31, 61, 0.88) 100%);
    z-index: 1;
    transition: background 0.3s ease;
}

.client-item span {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 12px 10px;
    color: #FFFFFF;
    font-size: 14px;
    z-index: 2;
    text-align: center;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.client-item:hover {
    border-color: var(--gold-400);
    box-shadow: 0 10px 24px rgba(15, 42, 82, 0.18);
}

.client-item:hover img { transform: scale(1.08); }
.client-item:hover span { color: var(--gold-300); }
.client-item:hover::after {
    background: linear-gradient(180deg, rgba(10, 31, 61, 0.3) 0%, rgba(10, 31, 61, 0.96) 100%);
}

/* ===== 联系我们页 ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 24px;
    color: var(--ink);
    margin-bottom: 26px;
    letter-spacing: 1px;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 20px 0;
    border-bottom: 1px dashed var(--border);
}

.contact-list .c-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: var(--navy-900);
    color: var(--gold-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.contact-list .c-label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.contact-list .c-value {
    color: var(--ink);
    font-size: 16px;
    font-weight: 500;
}

.contact-list .c-value.gold { color: var(--gold-600); }

.contact-qq {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-soft);
    border-left: 3px solid var(--gold-500);
}

.contact-qq h4 {
    font-size: 16px;
    color: var(--ink);
    margin-bottom: 12px;
}

.contact-qq .qq-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    color: var(--text-sub);
    font-size: 14px;
}

.contact-qq .qq-row span b { color: var(--gold-600); }

.map-box {
    height: 100%;
    min-height: 420px;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 16px 40px rgba(15, 42, 82, 0.15);
    position: relative;
}

.map-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-box .map-overlay {
    position: absolute;
    left: 24px;
    bottom: 24px;
    background: rgba(10, 31, 61, 0.92);
    color: #FFFFFF;
    padding: 16px 22px;
    border-left: 3px solid var(--gold-400);
}

.map-box .map-overlay h4 {
    color: var(--gold-300);
    font-size: 13px;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.map-box .map-overlay p { font-size: 15px; }

/* ===== 页脚 ===== */
.site-footer {
    background: var(--navy-900);
    color: #8C9BB3;
    padding-top: 60px;
    position: relative;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-400), var(--gold-600), var(--gold-400));
}

.footer-top {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px 44px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
    font-size: 24px;
    color: #FFFFFF;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.footer-brand .footer-logo .gold-dot { color: var(--gold-400); }

.footer-brand p {
    font-size: 14px;
    line-height: 1.9;
    color: #8C9BB3;
    margin-bottom: 20px;
}

.footer-brand .footer-contact-line {
    font-size: 13px;
    color: #A6B3C9;
}

.footer-brand .footer-contact-line b {
    color: var(--gold-300);
}

.footer-col h4 {
    color: #FFFFFF;
    font-size: 15px;
    margin-bottom: 20px;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background: var(--gold-500);
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: #8C9BB3;
    font-size: 14px;
}

.footer-col ul li a:hover {
    color: var(--gold-300);
    padding-left: 4px;
}

.footer-bottom {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 22px 24px;
    text-align: center;
    font-size: 13px;
    color: #6A7A92;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .hero { min-height: 540px; }
    .hero h1 { font-size: 40px; }
    .hero-stats-inner { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .hero-stat:nth-child(2) { border-right: none; }
    .hero-stat { border-bottom: 1px solid rgba(201, 161, 74, 0.2); padding-bottom: 16px; }
    .hero-stat:nth-last-child(-n+2) { border-bottom: none; }

    .biz-grid { grid-template-columns: repeat(2, 1fr); }
    .value-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .client-wall { grid-template-columns: repeat(4, 1fr); }
    .about-block, .about-intro, .contact-wrapper { grid-template-columns: 1fr; gap: 36px; }
    .about-visual { height: 280px; order: -1; }
    .about-visual::after { width: 80px; height: 80px; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }

    .page-banner { min-height: 280px; }
    .page-banner h1 { font-size: 32px; }
}

@media (max-width: 768px) {
    .top-bar { display: none; }

    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: rgba(15, 42, 82, 0.98);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        border-bottom: 1px solid rgba(201, 161, 74, 0.25);
    }
    .nav-menu.open { max-height: 420px; }
    .nav-menu li { border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
    .nav-menu li a { display: block; padding: 16px 24px; color: #CDD7E6; }
    .nav-menu li a::after { display: none; }

    .hero { min-height: 480px; }
    .hero h1 { font-size: 30px; letter-spacing: 2px; }
    .hero .hero-desc { font-size: 15px; }
    .hero .hero-btns { flex-direction: column; align-items: stretch; }
    .hero .hero-btns .btn { justify-content: center; }
    .hero-eyebrow::before, .hero-eyebrow::after { width: 20px; }

    .page-banner { min-height: 220px; }
    .page-banner h1 { font-size: 26px; }

    .section { padding: 56px 0; }
    .section-head h2 { font-size: 24px; }

    .biz-grid, .product-list, .case-grid { grid-template-columns: 1fr; }
    .client-wall { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 30px; }

    .map-box { min-height: 280px; }
    .cta-band h2 { font-size: 22px; }

    .about-feature { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 26px; }
    .hero-stats-inner { grid-template-columns: 1fr 1fr; }
    .container { padding: 0 16px; }
}

/* ===== 404 页面 ===== */
.not-found {
    position: relative;
    min-height: calc(100vh - 76px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #FFFFFF;
    overflow: hidden;
    padding: 90px 0;
}

.nf-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.nf-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 31, 61, 0.96) 0%, rgba(15, 42, 82, 0.92) 100%);
    z-index: 1;
}

.nf-inner {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding: 0 24px;
}

.nf-code {
    font-family: "Georgia", serif;
    font-size: 180px;
    font-weight: 700;
    color: var(--gold-400);
    line-height: 1;
    margin-bottom: 12px;
    text-shadow: 0 8px 40px rgba(201, 161, 74, 0.45);
    letter-spacing: 4px;
}

.nf-eyebrow {
    color: var(--gold-300);
    font-size: 13px;
    letter-spacing: 6px;
    margin-bottom: 18px;
    text-transform: uppercase;
}

.not-found h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.not-found p {
    color: #CDD7E6;
    font-size: 16px;
    margin-bottom: 38px;
    line-height: 1.9;
}

.nf-btns {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
}

.nf-suggest {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(201, 161, 74, 0.25);
}

    .nf-suggest h4 {
        color: var(--gold-300);
        font-size: 14px;
        letter-spacing: 2px;
        margin-bottom: 16px;
        text-transform: uppercase;
    }

.nf-suggest-links {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
}

    .nf-suggest-links a {
        color: #B8C5D6;
        font-size: 14px;
        padding-bottom: 4px;
        border-bottom: 1px solid transparent;
        transition: all 0.25s ease;
    }

        .nf-suggest-links a:hover {
            color: var(--gold-300);
            border-bottom-color: var(--gold-400);
        }

@media (max-width: 768px) {
    .nf-code {
        font-size: 120px;
    }

    .not-found h1 {
        font-size: 26px;
    }

    .nf-suggest-links {
        gap: 18px;
    }
}

@media (max-width: 480px) {
    .nf-code {
        font-size: 96px;
    }

    .nf-btns {
        flex-direction: column;
        align-items: stretch;
    }

        .nf-btns .btn {
            justify-content: center;
        }
}